Quote from: N-drju on September 22, 2020, 02:07:40 AMWho would have thought I would cause such a carnage with just a handful of questions? 
I am a master troll!!
PPI is definitely not a DPI. Even I know it already despite never before having to think about such issues.
Here's some more bad news for you Jordan. This is a screenshot from the Artstation help center itself;
Case close I'm afraid... Or is it...? 
@sboerner - Thank you very much for the Afinity Photo tip! The price is indeed very attractive! Even if used just as a "diagnostic measure", it shall be good value for money. 
I never said PPI was DPI, it's the equivalent in digital space. PPI is digital. DPI is physical. Even your screenshot from Art Station explains this.
The reason they say this is you can give images a EXIF label of DPI (digital camera can do this). Photoshop doesn't do this. You use document resolution, which tags the image with XResolution and YResolution instead of a ratio for a DPI label which will tell the printer to print at 300 DPI unless manually changed.
However setting your PPI allows printers to calculate the DPI for that image. Notice how they say what I said about printers not being at a 1:1 ratio for DPI anymore (unless a scanner). That's where the calculation comes in.
Again, you set PPI in Resolution which WILL be used by the printer to calculate DPI to print. When you set PPI it's not setting "300" or whatever you punch in in the EXIF data, it sets the documents X and Y PPI resolutions. If you were to give it a DPI label (which photoshop doesn't do) it would set a DPI of 300, which would tell the printer to print at 300, period, cause that's the header label the printer reads. That's why they tell you not to set a DPI for the file. You kinda gotta understand what's actually happening to the file. But if you are familiar with Phothoshop and printing your art, you know PPI is XResolution and YResolution is how DPI is calculated on a printer. Like they noted, and I noted, you can provide files at much higher XResolution and YResolution for better results, and they seem to be wanting to go even further.
There is just fundamental misunderstandings all abound. Lol
FYI the DPI label for image headers is deprecated as far as I know, when you talk about setting the DPI today, it's always referring to setting XResolution and YResolution (Not Width/Height). You could take a 300 PPI image and stamp it with 72 DPI and it would override printer results and ruin the image. This is why it's especially important. However, again, PPI is directly being used to calculate DPI, inherently.
